docs: def publishing_column(self, obj):
          """
          Render publishing-related status icons and view links for display in
          the admin.
          """
          # TODO Hack to convert polymorphic objects to real instances
          if hasattr(obj, 'get_real_instance'):
              obj = obj.get_real_instance()
  
          try:
              object_url = obj.get_absolute_url()
          except (NoReverseMatch, AttributeError):
              object_url = ''
  
          template_name = 'admin/publishing/_change_list_publishing_column.html'
          t = loader.get_template(template_name)
          c = Context({
              'object': obj,
              'object_url': object_url,
              'has_publish_permission':
                  self.has_publish_permission(self.request, obj),
              'has_preview_permission':
                  self.has_preview_permission(self.request, obj),
          })
          try:
              if isinstance(obj, PublishingModel):
                  c['publish_url'] = reverse(
                      self.publish_reverse(type(obj)), args=(obj.pk, ))
                  c['unpublish_url'] = reverse(
                      self.unpublish_reverse(type(obj)), args=(obj.pk, ))
          except NoReverseMatch:
              pass
          return t.render(c)